Abstract
A single slot cavity coupled with two waveguides has been researched in theory and simulation. The results comparison between theory and simulation shows they agree well. It is found that the lateral displacement S plays an important role in transmission properties. Moreover, increasing the width of the slot cavity results in the emergence of new resonant peaks. At the same time, the shift of the resonant peaks have been explained well. The slot cavity with Kerr nonlinear material can act as a dynamically tunable four channel switch and filter. The single slot cavity has the advantages of simple and compact structure, easy fabrication, and the excellent properties are helpful to control light in photonics circuits.
Highlights
A single slot cavity coupled with two waveguides has been researched in theory and simulation
The lateral displacement S plays an important role in the transmission property
Attributing to the superposition of resonant modes, it is found that new resonant peaks emerge by increasing the width of slot cavity
Summary
Boxun Li1, Lili Zeng[2], Xingjiao Zhang[1], Biao He3, Kun Liao[1], Kun Liu1 & Bin Wang[1]. A single slot cavity coupled with two waveguides has been researched in theory and simulation. Increasing the width of the slot cavity results in the emergence of new resonant peaks. The single slot cavity has the advantages of simple and compact structure, easy fabrication, and the excellent properties are helpful to control light in photonics circuits. Some researchers had investigated the tunable plasmonic structures based on MDM waveguide. It can be applied in sensor and filter[11,12,13,14,15,16,17]. The results reveal that the single slot cavity with Kerr nonlinear material can act as a dynamically tunable four channel switch and filter. This work paves a new way towards the realization of dynamic control of light in photonics circuits
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